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Finding the Fourth Proportional to 110,332.80, 152,215.20 and 72,079.20

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Solution

The fourth proportional to 110,332.80, 152,215.20 and 72,079.20 is: 99,440.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,332.80 : 152,215.20 = 72,079.20 : x
  2. Step 2: Convert to fraction form
    110,332.80/152,215.20 = 72,079.20/x
  3. Step 3: Cross multiply
    110,332.80x = 152,215.20 × 72,079.20
  4. Step 4: Simplify right side
    110,332.80x = 10,971,549,843.84
  5. Step 5: Solve for x
    x = 10,971,549,843.84/110,332.80
  6. Step 6: Final answer
    x = 99,440.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.